KEF LS50 Meta Bookshelf Speakers
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KEF Metamaterial Absorption Technology (Shorter Version) KEF LS50 Meta Bookshelf Speakers KEF LS50 Meta Bookshelf Speakers KEF LS50 Meta Bookshelf Speakers KEF LS50 Meta Bookshelf Speakers KEF LS50 Meta Bookshelf Speakers

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KEF LS50 Wireless II Bookshelf Speakers

KEF LS50 Wireless II Bookshelf Speakers

KEF S2 Speaker Stands

KEF S2 Speaker Stands

KEF LS50 Meta Bookshelf Speakers

The LS50 was born out of KEF’s willingness to think outside the box, to constantly search for new materials, techniques and technologies.

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KEF LS50 Meta Bookshelf Speakers

The World's First Speakers with Metamaterial

Great loudspeakers disappear, leaving just the music. LS50 Meta is such a loudspeaker. The incredibly immersive sound means you lose yourself in your favourite music. Savouring every nuance as layer upon layer of instrumentation is delivered with exceptional acoustic accuracy anywhere in the room.

PERFORMANCE – most accurate, immersive sound
• Metamaterial Absorption Technology eliminates
99% of high-frequency distortion for pure,
natural sound
• 12th generation Uni-Q with MAT driver array
for exceptional acoustic accuracy
• Driver Performance Optimisation for enhanced
sonic performance, less distortion and reduced
• Patented off-set flexible port for reduced
midrange coloration with exceptional levels
of depth and detail

DESIGN – attention to every detail
• Optimised cabinet design for best acoustic
• Available in 4 finishes
• With mounting inserts to secure on KEF S2
Floor Stand (available as separate item


Most accurate, immersive sound

Every spot is the sweet spot

12th generation Uni-Q with MAT

Using advanced simulation and analysis tools, our engineers have developed the 12th generation Uni-Q with MAT. This new driver array delivers reduced coloration, less distortion and a sound that is more transparent and life-like than previously possible, all dispersed evenly throughout the room.

Enhancement from legendary LS50 Lineage

Curved for performance

Great loudspeakers disappear, leaving just the music. LS50 Meta is such a loudspeaker, and enhancements over the legendary LS50 include Driver Performance Optimisation and patented off-set flexible port for the best acoustic performance and an incredible immersive sound.

LS50 Meta’s low-diffraction, curved baffle is precision modelled around the Uni-Q driver array. It’s smooth curved surfaces help radiate sound out across the baffle without any interference from hard edges, which cause diffraction. The result is cleaner, more precise sound.

Braced for action

Flexible port

LS50 Meta’s baffle is engineered from an injection-moulded Dough Moulding Compound (DMC), while inside the cabinet cross bracing and Constrained Layer Damping (CLD) combine to deaden internal vibrations. The result of such meticulous attention to detail is the lowest coloration of any speaker in its class.

Using Computational Fluid Dynamics (CFD), the port flare and profile of LS50 Meta’s patented off-set port is calculated to delay the onset of turbulence, and the flexible port walls prevent resonances from colouring the midrange. This leads to improved clarity, with exceptional depth and detail.


Attention to every detail

Every aspect of LS50 Meta has been considered for acoustic benefits and from a design perspective. The low-diffraction curved front baffle is subtly mirrored by the gently radiused rear panel, where both the port exit and speaker terminals have been elegantly recessed and softened visually.

Designed for performance

LS50 Meta may look sensational, but as a high-performance loudspeaker every aspect of its design is a case of form following function. From the precision modelled curved baffle to the solid, reinforced cabinet, every inch of LS50 Meta has been designed to perform.

Finished to perfection

LS50 Meta is much more than just a utilitarian loudspeaker; it is a piece of sculpture that livens up your life. This is why we offer a choice of four finishes, Carbon Black, Titanium Grey, Mineral White, and Royal Blue Special Edition.

What's new

Owners of the award-winning LS50 may find themselves asking what’s new? After all, LS50 Meta certainly shares a likeness with the original. But while LS50 is a great speaker, LS50 Meta and the technological advances it boasts offer a truly dramatic improvement in sound quality.


  • Two-way bass reflex

Drive units

  • Uni-Q Driver Array:
    • HF: 25 mm (1 in.) vented aluminium dome with Metamaterial Absorption Technology
    • MF/LF: 130 mm (5.25 in.) aluminium cone

Crossover frequency

  • 2.1 kHz

Frequency range (-6dB)

  • 47 Hz - 45 kHz

Typical in-room bass response (-6dB)

  • 26 Hz

Frequency response (±3dB)

  • 79 Hz - 28 kHz

Harmonic distortion (90dB, 1m)

  • <0.4% 175 Hz - 20 kHz
  • <0.1% 300 Hz - 10 kHz

Maximum output

  • 106 dB

Amplifier power (recommended)

  • 40-100 W

Nominal impedance

  • 8 Ω (min. 3.5 Ω)

Sensitivity (2.83V/1m)

  • 85 dB


  • 7.8 kg (17.2 lbs.)

Dimension with terminals

  • 302mm Height
  • 200mm Width
  • 280.5 mm Depth


  • Carbon Black
  • Titanium Grey
  • Mineral White
  • Royal Blue Special Edition

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